542e13b2937356810bda2c41be83c3b1675e2f2f rpc: Enhance metadata of the dumptxoutset output (Fabian Jahr)
4d8e5edbaa94805be41ae4c8aa2f4bf7aaa276fe assumeutxo: Add documentation on dumptxoutset serialization format (Fabian Jahr)
c14ed7f384075330361df636f40121cf25a066d6 assumeutxo: Add test for changed coin size value (Fabian Jahr)
de95953d870c41436de67d56c93259bc66fe1434 rpc: Optimize serialization disk space of dumptxoutset (Fabian Jahr)
Pull request description:
The second attempt at implementing the `dumptxoutset` space optimization as suggested in #25675. Closes#25675.
This builds on the work done in #26045, addresses open feedback, adds some further improvements (most importantly usage of compact size), documentation, and an additional test.
The [original snapshot at height 830,000](https://github.com/bitcoin/bitcoin/pull/29551) came in at 10.82 GB. With this change, the same snapshot is 8.94 GB, a reduction of 17.4%.
This also enhances the metadata of the output file and adds the following data to allow for better error handling and make future upgrades easier:
- A newly introduced utxo set magic
- A version number
- The network magic
- The block height
ACKs for top commit:
achow101:
ACK 542e13b2937356810bda2c41be83c3b1675e2f2f
TheCharlatan:
Re-ACK 542e13b2937356810bda2c41be83c3b1675e2f2f
theStack:
ACK 542e13b2937356810bda2c41be83c3b1675e2f2f
Tree-SHA512: 0825d30e5c3c364062db3c6cbca4e3c680e6e6d3e259fa70c0c2b2a7020f24a47406a623582040988d5c7745b08649c31110df4c10656aa25f3f27eb35843d99
b47bd959207e82555f07e028cc2246943d32d4c3 kernel: De-globalize fReindex (TheCharlatan)
Pull request description:
fReindex is one of the last remaining globals exposed by the kernel library, so move it into the blockstorage class to reduce the amount of global mutable state and make the kernel library a bit less awkward to use.
---
This pull request is part of the [libbitcoinkernel project](https://github.com/bitcoin/bitcoin/issues/27587).
ACKs for top commit:
achow101:
ACK b47bd959207e82555f07e028cc2246943d32d4c3
ryanofsky:
Code review ACK b47bd959207e82555f07e028cc2246943d32d4c3. I rereviewed the whole PR, but the only change since last review was reverting the bugfix https://github.com/bitcoin/bitcoin/pull/29817#discussion_r1578327024 and make the change a pure refactoring.
mzumsande:
Code Review ACK b47bd959207e82555f07e028cc2246943d32d4c3
stickies-v:
ACK b47bd959207e82555f07e028cc2246943d32d4c3
Tree-SHA512: f7399d01f93bc0c0c7428fe95d19b9d29b4ed00a4f1deabca78fb0c4fecb434ec971e890feecb105938b5247c926850b1b7b4a4a9caa333a061e40777d0c8463
e41667b720372dae8438ea86e9819027e62b54e0 blockstorage: Don't move cursor backwards in UpdateBlockInfo (Ryan Ofsky)
17103637c6fa2dfcf5374ebb0cd715e540dd4ce1 blockstorage: Rename FindBlockPos and have it return a FlatFilePos (Martin Zumsande)
d9e477c4dc39d9623ed66c35c06e28f94ae62ad5 validation, blockstorage: Separate code paths for reindex and saving new blocks (Martin Zumsande)
064859bbad6984a6ec85c744064abdf757807c58 blockstorage: split up FindBlockPos function (Martin Zumsande)
fdae638e83522c28a1222e65c43d1cbca3e34cba doc: Improve doc for functions involved in saving blocks to disk (Martin Zumsande)
0d114e3cb20cb9e03fc9ba8daf3d03436b491742 blockstorage: Add Assume for fKnown / snapshot chainstate (Martin Zumsande)
Pull request description:
`SaveBlockToDisk` / `FindBlockPos` are used for two purposes, depending on whether they are called during reindexing (`dbp` set, `fKnown = true`) or in the "normal" case when adding new blocks (`dbp == nullptr`, `fKnown = false`).
The actual tasks are quite different
- In normal mode, preparations for saving a new block are made, which is then saved: find the correct position on disk (maybe skipping to a new blk file), check for available disk space, update the blockfile info db, save the block.
- during reindex, most of this is not necessary (the block is already on disk after all), only the blockfile info needs to rebuilt because reindex wiped the leveldb it's saved in.
Using one function with many conditional statements for this leads to code that is hard to read / understand and bug-prone:
- many code paths in `FindBlockPos` are conditional on `fKnown` or `!fKnown`
- It's not really clear what actually needs to be done during reindex (we don't need to "save a block to disk" or "find a block pos" as the function names suggest)
- logic that should be applied to only one of the two modes is sometimes applied to both (see first commit, or #27039)
#24858 and #27039 were recent bugs directly related to the differences between reindexing and normal mode, and in both cases the simple fix took a long time to be reviewed and merged.
This PR proposes to clean this code up by splitting out the reindex logic into a separate function (`UpdateBlockInfo`) which will be called directly from validation. As a result, `SaveBlockToDisk` and `FindBlockPos` only need to cover the non-reindex logic.
ACKs for top commit:
paplorinc:
ACK e41667b720372dae8438ea86e9819027e62b54e0
TheCharlatan:
Re-ACK e41667b720372dae8438ea86e9819027e62b54e0
ryanofsky:
Code review ACK e41667b720372dae8438ea86e9819027e62b54e0. Just improvements to comments since last review.
Tree-SHA512: a14ff9a0facf6b1e3c1cd724a2d19a79a25d4b48de64398fdd172671532a472bc10a20cbb64ac3a3e55814dcc877d0597a3e1699cabc4f9d9a86b439b6eaba20
fReindex is one of the last remaining globals exposed by the kernel
library, so move it into the blockstorage class to reduce the amount of
global mutable state and make the kernel library a bit less awkward to
use.
cc67d33fdac45357b593b1faff3d1735e5fe91ba refactor: Simply include CTxMemPool::Options in CTxMemPool directly rather than duplicating definition (Luke Dashjr)
Pull request description:
Instead of duplicating mempool options two places, just include the Options struct directly on the CTxMemPool
ACKs for top commit:
achow101:
ACK cc67d33fdac45357b593b1faff3d1735e5fe91ba
kristapsk:
cr utACK cc67d33fdac45357b593b1faff3d1735e5fe91ba
jonatack:
ACK cc67d33fdac45357b593b1faff3d1735e5fe91ba
Tree-SHA512: 9deb5ea6f85eeb1c7e04536cded65303b0ec459936a97e4f257aff2c50b0984a4ddbf69a4651f48455b9c80200a1fd24e9c74926874fdd9be436bbbe406251ce
Previously, it was possible to move the cursor back to an older file
during reindex if blocks are enocuntered out of order during reindex.
This would mean that MaxBlockfileNum() would be incorrect, and
a wrong DB_LAST_BLOCK could be written to disk.
This improves the logic by only ever moving the cursor forward (if possible)
but not backwards.
Co-authored-by: Martin Zumsande <mzumsande@gmail.com>
The new name reflects that it is no longer called with existing blocks
for which the position is already known.
Returning a FlatFilePos directly simplifies the interface.
By calling SaveBlockToDisk only when we actually want to save a new
block to disk. In the reindex case, we now call UpdateBlockInfo
directly from validation.
This commit doesn't change behavior.
FindBlockPos does different things depending on whether the block is known
or not, as shown by the fact that much of the existing code is conditional on fKnown set or not.
If the block position is known (during reindex) the function only updates the block info
statistics. It doesn't actually find a block position in this case.
This commit removes fKnown and splits up these two code paths by introducing a separate function
for the reindex case when the block position is known.
It doesn't change behavior.
d4b17c7d46ad8e2833ade99d5b4c9741c913e84d kernel: Remove batchpriority from kernel library (TheCharlatan)
Pull request description:
The current usage of ScheduleBatchPriority is not transparent. Once the thread scheduling is changed, it remains unchanged for the remainder of the thread's lifetime. So move the call from `ImportBlocks` to the init code where it is clearer that its effect lasts for the entire lifetime of the thread.
Users of the kernel library might not expect `ImportBlocks` to have an influence on the thread it is called in. Particularly since it is only a compile time option and cannot be controlled at runtime. With this patch users of the kernel library can now freely choose their own scheduling policy.
This PR is easier reviewed with `git diff --color-moved-ws=ignore-all-space --color-moved=dimmed-zebra`
---
This PR is part of the [libbitcoinkernel project](https://github.com/bitcoin/bitcoin/issues/27587).
ACKs for top commit:
maflcko:
ACK d4b17c7d46ad8e2833ade99d5b4c9741c913e84d 📭
ryanofsky:
Code review ACK d4b17c7d46ad8e2833ade99d5b4c9741c913e84d, just added suggested comment since last review
hebasto:
ACK d4b17c7d46ad8e2833ade99d5b4c9741c913e84d, I have reviewed the code and it looks OK.
Tree-SHA512: cafedecd9affad58ddd7f30f68bba71291ca951bb186ff4b2da04b7f21f0b26e5e3143846d032b9e391bd5ce6c7466b97aa3758d2a85ebd7353eb8b69139641a
The current usage of ScheduleBatchPriority is not transparent. Once the
thread scheduling is changed, it remains unchanged for the remainder of
the thread's lifetime. So move the call from `ImportBlocks` to the init
code where it is clearer that its effect lasts for the entire lifetime
of the thread.
Users of the kernel library might not expect `ImportBlocks` to have an
influence on the thread it is called in. Particularly since it is only a
compile time option and cannot be controlled at runtime. With this patch
users of the kernel library can now choose their own scheduling policy.
The key module's functionality is not used by the kernel library, but
currently kernel users are still required to initialize the key module's
`secp256k1_context_sign` global as part of the `kernel::Context` through
`ECC_Start`.
fKnown is true during reindex (and only then), which deletes
any existing snapshot chainstate. As a result, this function can never
be called wth fKnown set and a snapshot chainstate.
Add an Assume for this, and make the code initializing a blockfile cursor
for the snapshot conditional on !fKnown.
This is a preparation for splitting the reindex logic out of
FindBlockPos in the following commits.
fa09451f8e6799682d7e7c863f25334fd1c7dce3 Add lint check for bitcoin-config.h include IWYU pragma (MarcoFalke)
dddd40ba8267dea11a3eb03d5cf8b51dbb99be5d scripted-diff: Add IWYU pragma keep to bitcoin-config.h includes (MarcoFalke)
Pull request description:
The `bitcoin-config.h` includes have issues:
* The header is incompatible with iwyu, because symbols may be defined or not defined. So the `IWYU pragma: keep` is needed to keep the include when a symbol is not defined on a platform. Compare the previous discussion in https://github.com/bitcoin/bitcoin/pull/29408#issuecomment-1948959711
* Guarding the includes by `HAVE_CONFIG_H` is verbose and brittle. Now that all build config dependencies have been removed from low level headers, the benefits are questionable, and the guard can be removed. The linter could also be tricked by guarding the include by `#if defined(HAVE_C0NFIG_H)` (`O` replaced by `0`). Compare the previous discussion in https://github.com/bitcoin/bitcoin/pull/29404#discussion_r1483189853 .
ACKs for top commit:
achow101:
ACK fa09451f8e6799682d7e7c863f25334fd1c7dce3
TheCharlatan:
ACK fa09451f8e6799682d7e7c863f25334fd1c7dce3
hebasto:
re-ACK fa09451f8e6799682d7e7c863f25334fd1c7dce3, only rebased since my recent [review](https://github.com/bitcoin/bitcoin/pull/29494#pullrequestreview-2028864535) (`timedata.cpp` removed in https://github.com/bitcoin/bitcoin/pull/29623).
Tree-SHA512: 47cb973f7f24bc625acc4e78683371863675d186780236d55d886cf4130e05a78bb04f1d731aae7088313b8e963a9677cc77cf518187dbd99d776f6421ca9b52
The RPC documentation for `getblockchaininfo`, `getmininginfo` and
`getnetworkinfo` states that "warnings" returns "any network and
blockchain warnings". In practice, only a single warning is returned.
Fix that by returning all warnings as an array.
As a side benefit, cleans up the GetWarnings() logic.
c6be144c4b774a03a8bcab5a165768cf81e9b06b Remove timedata (stickies-v)
92e72b5d0d49aa395e626c238bc28aba8e4c3d44 [net processing] Move IgnoresIncomingTxs to PeerManagerInfo (dergoegge)
7d9c3ec622d73a98d07ab3cee78751718982a5bc [net processing] Introduce PeerManagerInfo (dergoegge)
ee178dfcc1175e0af8163216c9c024f4bfc97965 Add TimeOffsets helper class (stickies-v)
55361a15d1aa6984051441bce88112000688fb43 [net processing] Use std::chrono for type-safe time offsets (stickies-v)
038fd979effb54ee76ce1b7cf078e920c652326a [net processing] Move nTimeOffset to net_processing (dergoegge)
Pull request description:
[An earlier approach](1d226ae1f9/) in #28956 involved simplifying and refactoring the network-adjusted time calculation logic, but this was eventually [left out](https://github.com/bitcoin/bitcoin/pull/28956#issuecomment-1904214370) of the PR to make it easier for reviewers to focus on consensus logic changes.
Since network-adjusted time is now only used for warning/informational purposes, cleaning up the logic (building on @dergoegge's approach in #28956) should be quite straightforward and uncontroversial. The main changes are:
- Previously, we would only calculate the time offset from the first 199 outbound peers that we connected to. This limitation is now removed, and we have a proper rolling calculation. I've reduced the set to 50 outbound peers, which seems plenty.
- Previously, we would automatically use the network-adjusted time if the difference was < 70 mins, and warn the user if the difference was larger than that. Since there is no longer any automated time adjustment, I've changed the warning threshold to ~~20~~ 10 minutes (which is an arbitrary number).
- Previously, a warning would only be raised once, and then never again until node restart. This behaviour is now updated to 1) warn to log for every new outbound peer for as long as we appear out of sync, 2) have the RPC warning toggled on/off whenever we go in/out of sync, and 3) have the GUI warn whenever we are out of sync (again), but limited to 1 messagebox per 60 minutes
- no more globals
- remove the `-maxtimeadjustment` startup arg
Closes#4521
ACKs for top commit:
sr-gi:
Re-ACK [c6be144](c6be144c4b)
achow101:
reACK c6be144c4b774a03a8bcab5a165768cf81e9b06b
dergoegge:
utACK c6be144c4b774a03a8bcab5a165768cf81e9b06b
Tree-SHA512: 1063d639542e882186cdcea67d225ad1f97847f44253621a8c4b36c4d777e8f5cb0efe86bc279f01e819d33056ae4364c3300cc7400c087fb16c3f39b3e16b96
This helper class is an alternative to CMedianFilter, but without a
lot of the special logic and exceptions that we needed while it was
still used for consensus.
The extra `bilingual_str` argument of the fatal error notifications and
`node::AbortNode()` is often unused and when used usually contains the
same string as the message argument. It also seems to be confusing,
since it is not consistently used for errors requiring user action. For
example some assumeutxo fatal errors require the user to do something,
but are not translated.
So simplify the fatal error and abort node interfaces by only passing a
translated string. This slightly changes the fatal errors displayed to
the user.
Also de-duplicate the abort error log since it is repeated in noui.cpp.
dfcef536d0e6c40e98dce35ae7af6e3e4a2595cd blockstorage: do not flush block to disk if it is already there (Matthew Zipkin)
Pull request description:
Closes https://github.com/bitcoin/bitcoin/issues/2039
When reindexing from flat-file block storage there is no need to write anything back to disk, since the block data is already there. This PR skips flushing to disk those blocks that already have a known position in the datastore. Skipping this means that users can write-protect the `blk` files on disk which may be useful for security or even safely sharing that data between multiple bitcoind instances.
`FindBlockPos()` may also flush the undo data file, but again this is skipped if the corresponding block position is known, like during the initial stage of a reindex when block data is being indexed. Once the block index is complete the validation mechanism will call `ConnectBlock()` which will save undo data at that time.
The call stack looks like this:
```
init()
ThreadImport() <-- process fReindex flag
LoadExternalBlockFile()
AcceptBlock()
SaveBlockToDisk()
FindBlockPos()
FlushBlockFile() <-- unnecessary if block is already on disk
```
A larger refactor of this part of the code was started by mzumsande here: https://github.com/mzumsande/bitcoin/tree/202207_refactor_findblockpos including this fix, reviewers can let me know if the changes should be combined.
ACKs for top commit:
sipa:
utACK dfcef536d0e6c40e98dce35ae7af6e3e4a2595cd
mzumsande:
re-ACK dfcef536d0e6c40e98dce35ae7af6e3e4a2595cd
achow101:
ACK dfcef536d0e6c40e98dce35ae7af6e3e4a2595cd
furszy:
Rebase diff ACK dfcef53.
Tree-SHA512: 385c5ac1288b325135398d0ddd3ab788fa98cc0ca19bd2474c74039f2ce70d5088c1d1c9d4dd10aefcbd4c757767ec5805d07ba8cee9289a66f96e6f9eaa5279
38f70ba6ac86fb96c60571d2e1f316315c1c73cc RPC: Add maxfeerate and maxburnamount args to submitpackage (Greg Sanders)
Pull request description:
Resolves https://github.com/bitcoin/bitcoin/issues/28949
I couldn't manage to do it very cleanly outside of (sub)package evaluation itself, since it would change the current interface very heavily. Instead I threaded through the max fee argument and used that directly via ATMPArgs. From that perspective, this is somewhat a reversion from https://github.com/bitcoin/bitcoin/pull/19339. In a post-cluster mempool world, these checks could be consolidated to right after the given (ancestor) package is linearized/chunked, by just checking the feerate of the top chunk and rejecting the submission entirely if the top chunk is too high.
The implication here is that subpackages can be submitted to the mempool prior to hitting this new fee-based error condition.
ACKs for top commit:
ismaelsadeeq:
Re-ACK 38f70ba6ac👍🏾
glozow:
ACK 38f70ba6ac with some non-blocking nits
murchandamus:
LGTM, code review ACK 38f70ba6ac86fb96c60571d2e1f316315c1c73cc
Tree-SHA512: 38212aa9de25730944cee58b0806a3d37097e42719af8dd7de91ce86bb5d9770b6f7c37354bf418bd8ba571c52947da1dcdbb968bf429dd1dbdf8715315af18f
And thread the feerate value through ProcessNewPackage to
reject individual transactions that exceed the given
feerate. This allows subpackage processing, and is
compatible with future package RBF work.
ReadRawBlockFromDisk assumes a non-null pos that has an nPos >= 8.
This simple check makes the function safer to call in the future,
so callers don't need to worry about causing UB if the pos is null.
This fixes the log output when -logsourcelocations is used.
Also, instead of 'ERROR:', the log will now say '[error]', like other
errors logged with LogError.
-BEGIN VERIFY SCRIPT-
sed -i --regexp-extended 's! error\("([^"]+)"! LogError("\1\\n"!g' $( git grep -l ' error(' ./src/ )
-END VERIFY SCRIPT-
This is needed for the next commit.
-BEGIN VERIFY SCRIPT-
# Separate sed invocations to replace one-line, and two-line error(...) calls
sed -i --regexp-extended 's!( +)return (error\(.*\);)!\1\2\n\1return false;!g' $( git grep -l 'return error(' )
sed -i --null-data --regexp-extended 's!( +)return (error\([^\n]*\n[^\n]*\);)!\1\2\n\1return false;!g' $( git grep -l 'return error(' )
-END VERIFY SCRIPT-
ff9039f6ea876bab2c40a06a93e0dd087f445fa2 Remove GetAdjustedTime (dergoegge)
Pull request description:
This picks up parts of #25908.
The use of adjusted time is removed from validation code while the warning to users if their clock is out of sync with the rest of the network remains.
ACKs for top commit:
naumenkogs:
ACK ff9039f6ea876bab2c40a06a93e0dd087f445fa2
achow101:
ACK ff9039f6ea876bab2c40a06a93e0dd087f445fa2
maflcko:
lgtm ACK ff9039f6ea876bab2c40a06a93e0dd087f445fa2 🤽
stickies-v:
ACK ff9039f6ea876bab2c40a06a93e0dd087f445fa2
Tree-SHA512: d1f6b9445c236915503fd2ea828f0d3b92285a5dbc677b168453276115e349972edbad37194d8becd9136d8e7219b576af64ec51c72bdb1923e57e405c0483fc
31cce4a1bdbb48f57996615ee6c686e456cc0bea doc: update `BroadcastTransaction` comment (ismaelsadeeq)
Pull request description:
`BroadcastTransaction` is also called by `submitpackage` RPC.
All transactions that are accepted into the mempool post package processing are broadcasted to peers individually here
ea4ddd8652/src/rpc/mempool.cpp (L926)
It's not maintainable to list all the callers of a function.
ACKs for top commit:
stickies-v:
ACK 31cce4a1bdbb48f57996615ee6c686e456cc0bea
kristapsk:
ACK 31cce4a1bdbb48f57996615ee6c686e456cc0bea
naumenkogs:
ACK 31cce4a1bdbb48f57996615ee6c686e456cc0bea
Tree-SHA512: 8aea92c53c1911a0ac36fe9e3a24d37d83e7d9b40a16f0832bfa7a719328697621e3f94a5dc80d1840e7ae705e0c3aab7a3df7064986e1e53a4a4114adf078a8
d298ff8b62b2624ed390c8a2f905c888ffc956ff During IBD, prune as much as possible until we get close to where we will eventually keep blocks (Luke Dashjr)
Pull request description:
This should reduce pruning flushes even more, speeding up IBD with pruning on systems that have a sufficient dbcache.
Assumes 1 MB per block between tip and best header chain. Simply adds this to the buffer pruning is trying to leave available, which results in pruning almost everything up until we get close to where we need to be keeping blocks.
ACKs for top commit:
andrewtoth:
ACK d298ff8b62b2624ed390c8a2f905c888ffc956ff
fjahr:
utACK d298ff8b62b2624ed390c8a2f905c888ffc956ff
achow101:
ACK d298ff8b62b2624ed390c8a2f905c888ffc956ff
Tree-SHA512: 2a482376bfb177e2ba7c2f0bb0b58b02efdb38b34755a18d1fc3e869df5959c85b6f1009e1386fa8b89c4f90d520383e36bd3e21dec221042315134efb1a455b
fa46cc22bc696e6845915ae91d6b68e36bf4c242 Remove deprecated -rpcserialversion (MarcoFalke)
Pull request description:
The flag is problematic for many reasons:
* It is deprecated
* It is a global flag, requiring a restart to change, as opposed to a flag that can be set on each RPC invocation
* It may be hidden in config files by accident, hard to debug, causing LND crashes and bugs, see https://github.com/bitcoin/bitcoin/issues/28730#issuecomment-1780940868
* It makes performance improvements harder to implement: https://github.com/bitcoin/bitcoin/pull/17529#issuecomment-556082818
Fix all issues by removing it.
If there is a use-case, likely a per-RPC flag can be added, if needed.
ACKs for top commit:
ajtowns:
crACK fa46cc22bc696e6845915ae91d6b68e36bf4c242
TheCharlatan:
lgtm ACK fa46cc22bc696e6845915ae91d6b68e36bf4c242
Tree-SHA512: 96ba1c60356ce93954fe5c2a59045771c6d1516ad0d9dc436ef1800a1f1b0153f0d5fb78ca99d53ad54ba25fbce36962bdf1d4325aceedfc8154a61347a6a915
Update CheckPackageLimits to use util::Result to pass the error message
instead of out parameter.
Also update test to reflect the error message from `CTxMempool`
`CheckPackageLimits` output.
6db04be102807ee0120981a9b8de62a55439dabb Get rid of shutdown.cpp/shutdown.h, use SignalInterrupt directly (Ryan Ofsky)
213542b625a6a4885fcbdfe236629a5f381eeb05 refactor: Add InitContext function to initialize NodeContext with global pointers (Ryan Ofsky)
feeb7b816affa790e02e7ba0780c4ef33d2310ff refactor: Remove calls to StartShutdown from KernelNotifications (Ryan Ofsky)
6824eecaf1e74624cf149ed20abd9145c49d614a refactor: Remove call to StartShutdown from stop RPC (Ryan Ofsky)
1d92d89edbb1812dc353084c62772ebb1024d632 util: Get rid of uncaught exceptions thrown by SignalInterrupt class (Ryan Ofsky)
ba93966368d3aaa426b97837ef475ec5aa612f5f refactor: Remove call to ShutdownRequested from IndexWaitSynced (Ryan Ofsky)
42e5829d9710ebebda5de356fab01dd7c149d5fa refactor: Remove call to ShutdownRequested from HTTPRequest (Ryan Ofsky)
73133c36aa9cc09546eabac18d0ea35274dd5d72 refactor: Add NodeContext::shutdown member (Ryan Ofsky)
f4a8bd6e2f03e786a84dd7763d1c04665e6371f2 refactor: Remove call to StartShutdown from qt (Ryan Ofsky)
f0c73c1336bee74fe2d58474ac36bca28c219e85 refactor: Remove call to ShutdownRequested from rpc/mining (Ryan Ofsky)
263b23f0082c60516acced1b03abb8e4d8f9ee46 refactor: Remove call to ShutdownRequested from chainstate init (Ryan Ofsky)
Pull request description:
This change drops `shutdown.h` and `shutdown.cpp` files, replacing them with a `NodeContext::shutdown` member which is used to trigger shutdowns directly. This gets rid of an unnecessary layer of indirection, and allows getting rid of the `kernel::g_context` global.
Additionally, this PR tries to improve error handling of `SignalInterrupt` code by marking relevant methods `[[nodiscard]]` to avoid the possibility of uncaught exceptions mentioned https://github.com/bitcoin/bitcoin/pull/27861#discussion_r1255496707.
Behavior is changing In a few cases which are noted in individual commit messages. Particularly: GUI code more consistently interrupts RPCs when it is shutting down, shutdown state no longer persists between unit tests, the stop RPC now returns an RPC error if requesting shutdown fails instead of aborting, and other failed shutdown calls now log errors instead of aborting.
This PR is a net reduction in lines of code, but in some cases the explicit error handling and lack of global shutdown functions do make it more verbose. The verbosity can be seen as good thing if it discourages more code from directly triggering shutdowns, and instead encourages code to return errors or send notifications that could be translated into shutdowns. Probably a number of existing shutdown calls could just be replaced by better error handling.
ACKs for top commit:
achow101:
ACK 6db04be102807ee0120981a9b8de62a55439dabb
TheCharlatan:
Re-ACK 6db04be102807ee0120981a9b8de62a55439dabb
maflcko:
ACK 6db04be102807ee0120981a9b8de62a55439dabb 👗
stickies-v:
re-ACK 6db04be102807ee0120981a9b8de62a55439dabb
Tree-SHA512: 7a34cb69085f37e813c43bdaded1a0cbf6c53bd95fdde96f0cb45346127fc934604c43bccd3328231ca2f1faf712a7418d047ceabd22ef2dca3c32ebb659e634
This change is mostly a refectoring that removes some code and gets rid of an
unnecessary layer of indirection after #27861
But it is not a pure refactoring since StartShutdown, AbortShutdown, and
WaitForShutdown functions used to abort on failure, and the replacement code
logs or returns errors instead.
Use SignalInterrupt object instead. There is a slight change in behavior here
because the previous StartShutdown code used to abort on failure and the
new code logs errors instead.
Add NodeContext::shutdown variable and start using it to replace the
kernel::Context::interrupt variable. The latter can't easily be removed right
away but will be removed later in this PR.
Moving the interrupt object from the kernel context to the node context
increases flexibility of the kernel API so it is possible to use multiple
interrupt objects, or avoid creating one if one is not needed. It will also
allow getting rid of the kernel::g_context global later in this PR, replacing
it with a private SignalInterrupt instance in init.cpp
There is no change in behavior in this commit outside of unit tests. In unit
tests there should be no visible change either, but internally now each test
has its own interrupt variable so the variable will be automatically reset
between tests.
91504cbe0de2b74ef1aa2709761aaf0597ec66a2 rpc: `SyncWithValidationInterfaceQueue` on fee estimation RPC's (ismaelsadeeq)
714523918ba2b853fc69bee6b04a33ba0c828bf5 tx fees, policy: CBlockPolicyEstimator update from `CValidationInterface` notifications (ismaelsadeeq)
dff5ad3b9944cbb56126ba37a8da180d1327ba39 CValidationInterface: modify the parameter of `TransactionAddedToMempool` (ismaelsadeeq)
91532bd38223d7d04166e05de11d0d0b55e60f13 tx fees, policy: update `CBlockPolicyEstimator::processBlock` parameter (ismaelsadeeq)
bfcd401368fc0dc43827a8969a37b7e038d5ca79 CValidationInterface, mempool: add new callback to `CValidationInterface` (ismaelsadeeq)
0889e07987294d4ef2814abfca16d8e2a0c5f541 tx fees, policy: cast with static_cast instead of C-Style cast (ismaelsadeeq)
a0e3eb7549d2ba4dd3af12b9ce65e29158f59078 tx fees, policy: bugfix: move `removeTx` into reason != `BLOCK` condition (ismaelsadeeq)
Pull request description:
This is an attempt to #11775
This Pr will enable fee estimator to listen to ValidationInterface notifications to process new transactions added and removed from the mempool.
This PR includes the following changes:
- Added a new callback to the Validation Interface `MempoolTransactionsRemovedForConnectedBlock`, which notifies listeners about the transactions that have been removed due to a new block being connected, along with the height at which the transactions were removed.
- Modified the `TransactionAddedToMempool` callback parameter to include additional information about the transaction needed for fee estimation.
- Updated `CBlockPolicyEstimator` to process transactions using` CTransactionRef` instead of `CTxMempoolEntry.`
- Implemented the `CValidationInterface` interface in `CBlockPolicyEstimater` and overridden the `TransactionAddedToMempool`, `TransactionRemovedFromMempool`, and `MempoolTransactionsRemovedForConnectedBlock` methods to receive updates from their notifications.
Prior to this PR, the fee estimator updates from the mempool, i.e whenever a new block is connected all transactions in the block that are in our mempool are going to be removed using the `removeForBlock` function in `txmempool.cpp`.
This removal triggered updates to the fee estimator. As a result, the fee estimator would block mempool's `cs` until it finished updating every time a new block was connected.
Instead of being blocked only on mempool tx removal, we were blocking on both tx removal and fee estimator updating.
If we want to further improve fee estimation, or add heavy-calulation steps to it, it is currently not viable as we would be slowing down block relay in the process
This PR is smaller in terms of the changes made compared to #11775, as it focuses solely on enabling fee estimator updates from the validationInterface/cscheduler thread notifications.
I have not split the validation interface because, as I understand it, the rationale behind the split in #11775 was to have `MempoolInterface` signals come from the mempool and `CValidationInterface` events come from validation. I believe this separation can be achieved in a separate refactoring PR when the need arises.
Also left out some commits from #11775
- Some refactoring which are no longer needed.
- Handle reorgs much better in fee estimator.
- Track witness hash malleation in fee estimator
I believe they are a separate change that can come in a follow-up after this.
ACKs for top commit:
achow101:
ACK 91504cbe0de2b74ef1aa2709761aaf0597ec66a2
TheCharlatan:
Re-ACK 91504cbe0de2b74ef1aa2709761aaf0597ec66a2
willcl-ark:
ACK 91504cbe0de2b74ef1aa2709761aaf0597ec66a2
Tree-SHA512: 846dfb9da57a8a42458827b8975722d153907fe6302ad65748d74f311e1925557ad951c3d95fe71fb90ddcc8a3710c45abb343ab86b88780871cb9c38c72c7b1
